Home / 1,560.12-2,151.18-1,436.28

Finding the Fourth Proportional to 1,560.12, 2,151.18 and 1,436.28

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Solution

The fourth proportional to 1,560.12, 2,151.18 and 1,436.28 is: 1,980.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,560.12 : 2,151.18 = 1,436.28 : x
  2. Step 2: Convert to fraction form
    1,560.12/2,151.18 = 1,436.28/x
  3. Step 3: Cross multiply
    1,560.12x = 2,151.18 × 1,436.28
  4. Step 4: Simplify right side
    1,560.12x = 3,089,696.81
  5. Step 5: Solve for x
    x = 3,089,696.81/1,560.12
  6. Step 6: Final answer
    x = 1,980.42

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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.