Home / 3,130.88-4,695.52-1,281.65

Finding the Fourth Proportional to 3,130.88, 4,695.52 and 1,281.65

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Solution

The fourth proportional to 3,130.88, 4,695.52 and 1,281.65 is: 1,922.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,130.88 : 4,695.52 = 1,281.65 : x
  2. Step 2: Convert to fraction form
    3,130.88/4,695.52 = 1,281.65/x
  3. Step 3: Cross multiply
    3,130.88x = 4,695.52 × 1,281.65
  4. Step 4: Simplify right side
    3,130.88x = 6,018,013.21
  5. Step 5: Solve for x
    x = 6,018,013.21/3,130.88
  6. Step 6: Final answer
    x = 1,922.15

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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.