Home / 1,563.46-2,158-973.64

Finding the Fourth Proportional to 1,563.46, 2,158 and 973.64

Calculator

Solution

The fourth proportional to 1,563.46, 2,158 and 973.64 is: 1,343.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,563.46 : 2,158 = 973.64 : x
  2. Step 2: Convert to fraction form
    1,563.46/2,158 = 973.64/x
  3. Step 3: Cross multiply
    1,563.46x = 2,158 × 973.64
  4. Step 4: Simplify right side
    1,563.46x = 2,101,115.12
  5. Step 5: Solve for x
    x = 2,101,115.12/1,563.46
  6. Step 6: Final answer
    x = 1,343.89

Related Problems

Find fourth proportional to 781.73, 1,079 and 486.82
Half scale
Find fourth proportional to 3,126.92, 4,316 and 1,947.28
Double scale
Find fourth proportional to 1,564.46, 2,159.38 and 974.64
Similar ratio
Find fourth proportional to 2,345.19, 3,237 and 1,460.46
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.