Home / 1,569.72-2,165.26-1,038.60

Finding the Fourth Proportional to 1,569.72, 2,165.26 and 1,038.60

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Solution

The fourth proportional to 1,569.72, 2,165.26 and 1,038.60 is: 1,432.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,569.72 : 2,165.26 = 1,038.60 : x
  2. Step 2: Convert to fraction form
    1,569.72/2,165.26 = 1,038.60/x
  3. Step 3: Cross multiply
    1,569.72x = 2,165.26 × 1,038.60
  4. Step 4: Simplify right side
    1,569.72x = 2,248,839.04
  5. Step 5: Solve for x
    x = 2,248,839.04/1,569.72
  6. Step 6: Final answer
    x = 1,432.64

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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.