Home / 1,563.60-2,155.99-1,066.53

Finding the Fourth Proportional to 1,563.60, 2,155.99 and 1,066.53

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Solution

The fourth proportional to 1,563.60, 2,155.99 and 1,066.53 is: 1,470.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,563.60 : 2,155.99 = 1,066.53 : x
  2. Step 2: Convert to fraction form
    1,563.60/2,155.99 = 1,066.53/x
  3. Step 3: Cross multiply
    1,563.60x = 2,155.99 × 1,066.53
  4. Step 4: Simplify right side
    1,563.60x = 2,299,428.01
  5. Step 5: Solve for x
    x = 2,299,428.01/1,563.60
  6. Step 6: Final answer
    x = 1,470.60

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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.