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Finding the Fourth Proportional to 1,569.32, 2,354.79 and 703.46

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Solution

The fourth proportional to 1,569.32, 2,354.79 and 703.46 is: 1,055.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,569.32 : 2,354.79 = 703.46 : x
  2. Step 2: Convert to fraction form
    1,569.32/2,354.79 = 703.46/x
  3. Step 3: Cross multiply
    1,569.32x = 2,354.79 × 703.46
  4. Step 4: Simplify right side
    1,569.32x = 1,656,500.57
  5. Step 5: Solve for x
    x = 1,656,500.57/1,569.32
  6. Step 6: Final answer
    x = 1,055.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.