Home / 7,780.60-10,737.30-4,637.08

Finding the Fourth Proportional to 7,780.60, 10,737.30 and 4,637.08

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Solution

The fourth proportional to 7,780.60, 10,737.30 and 4,637.08 is: 6,399.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,780.60 : 10,737.30 = 4,637.08 : x
  2. Step 2: Convert to fraction form
    7,780.60/10,737.30 = 4,637.08/x
  3. Step 3: Cross multiply
    7,780.60x = 10,737.30 × 4,637.08
  4. Step 4: Simplify right side
    7,780.60x = 49,789,719.08
  5. Step 5: Solve for x
    x = 49,789,719.08/7,780.60
  6. Step 6: Final answer
    x = 6,399.21

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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.