Home / 4,774.65-7,151.59-2,920.15

Finding the Fourth Proportional to 4,774.65, 7,151.59 and 2,920.15

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Solution

The fourth proportional to 4,774.65, 7,151.59 and 2,920.15 is: 4,373.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,774.65 : 7,151.59 = 2,920.15 : x
  2. Step 2: Convert to fraction form
    4,774.65/7,151.59 = 2,920.15/x
  3. Step 3: Cross multiply
    4,774.65x = 7,151.59 × 2,920.15
  4. Step 4: Simplify right side
    4,774.65x = 20,883,717.18
  5. Step 5: Solve for x
    x = 20,883,717.18/4,774.65
  6. Step 6: Final answer
    x = 4,373.88

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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.