Home / 3,125.89-4,689.60-1,045.91

Finding the Fourth Proportional to 3,125.89, 4,689.60 and 1,045.91

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Solution

The fourth proportional to 3,125.89, 4,689.60 and 1,045.91 is: 1,569.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,125.89 : 4,689.60 = 1,045.91 : x
  2. Step 2: Convert to fraction form
    3,125.89/4,689.60 = 1,045.91/x
  3. Step 3: Cross multiply
    3,125.89x = 4,689.60 × 1,045.91
  4. Step 4: Simplify right side
    3,125.89x = 4,904,907.34
  5. Step 5: Solve for x
    x = 4,904,907.34/3,125.89
  6. Step 6: Final answer
    x = 1,569.12

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1.5x scale

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.