Home / 3,130.53-4,689.51-1,488.66

Finding the Fourth Proportional to 3,130.53, 4,689.51 and 1,488.66

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Solution

The fourth proportional to 3,130.53, 4,689.51 and 1,488.66 is: 2,230.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,130.53 : 4,689.51 = 1,488.66 : x
  2. Step 2: Convert to fraction form
    3,130.53/4,689.51 = 1,488.66/x
  3. Step 3: Cross multiply
    3,130.53x = 4,689.51 × 1,488.66
  4. Step 4: Simplify right side
    3,130.53x = 6,981,085.96
  5. Step 5: Solve for x
    x = 6,981,085.96/3,130.53
  6. Step 6: Final answer
    x = 2,230.00

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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.