Home / 1,563.09-2,156.52-973.14

Finding the Fourth Proportional to 1,563.09, 2,156.52 and 973.14

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Solution

The fourth proportional to 1,563.09, 2,156.52 and 973.14 is: 1,342.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,563.09 : 2,156.52 = 973.14 : x
  2. Step 2: Convert to fraction form
    1,563.09/2,156.52 = 973.14/x
  3. Step 3: Cross multiply
    1,563.09x = 2,156.52 × 973.14
  4. Step 4: Simplify right side
    1,563.09x = 2,098,595.87
  5. Step 5: Solve for x
    x = 2,098,595.87/1,563.09
  6. Step 6: Final answer
    x = 1,342.59

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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.