Home / 7,925.90-10,938.20-4,389.03

Finding the Fourth Proportional to 7,925.90, 10,938.20 and 4,389.03

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Solution

The fourth proportional to 7,925.90, 10,938.20 and 4,389.03 is: 6,057.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,925.90 : 10,938.20 = 4,389.03 : x
  2. Step 2: Convert to fraction form
    7,925.90/10,938.20 = 4,389.03/x
  3. Step 3: Cross multiply
    7,925.90x = 10,938.20 × 4,389.03
  4. Step 4: Simplify right side
    7,925.90x = 48,008,066.00
  5. Step 5: Solve for x
    x = 48,008,066.00/7,925.90
  6. Step 6: Final answer
    x = 6,057.12

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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.