Home / 5,340.79-7,373.76-4,780.29

Finding the Fourth Proportional to 5,340.79, 7,373.76 and 4,780.29

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Solution

The fourth proportional to 5,340.79, 7,373.76 and 4,780.29 is: 6,599.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,340.79 : 7,373.76 = 4,780.29 : x
  2. Step 2: Convert to fraction form
    5,340.79/7,373.76 = 4,780.29/x
  3. Step 3: Cross multiply
    5,340.79x = 7,373.76 × 4,780.29
  4. Step 4: Simplify right side
    5,340.79x = 35,248,650.42
  5. Step 5: Solve for x
    x = 35,248,650.42/5,340.79
  6. Step 6: Final answer
    x = 6,599.89

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1.5x scale

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.