Home / 1,569.15-2,354.67-1,157.40

Finding the Fourth Proportional to 1,569.15, 2,354.67 and 1,157.40

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Solution

The fourth proportional to 1,569.15, 2,354.67 and 1,157.40 is: 1,736.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,569.15 : 2,354.67 = 1,157.40 : x
  2. Step 2: Convert to fraction form
    1,569.15/2,354.67 = 1,157.40/x
  3. Step 3: Cross multiply
    1,569.15x = 2,354.67 × 1,157.40
  4. Step 4: Simplify right side
    1,569.15x = 2,725,295.06
  5. Step 5: Solve for x
    x = 2,725,295.06/1,569.15
  6. Step 6: Final answer
    x = 1,736.80

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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.