Home / 5,235.61-7,225.05-2,877.70

Finding the Fourth Proportional to 5,235.61, 7,225.05 and 2,877.70

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Solution

The fourth proportional to 5,235.61, 7,225.05 and 2,877.70 is: 3,971.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,235.61 : 7,225.05 = 2,877.70 : x
  2. Step 2: Convert to fraction form
    5,235.61/7,225.05 = 2,877.70/x
  3. Step 3: Cross multiply
    5,235.61x = 7,225.05 × 2,877.70
  4. Step 4: Simplify right side
    5,235.61x = 20,791,526.39
  5. Step 5: Solve for x
    x = 20,791,526.39/5,235.61
  6. Step 6: Final answer
    x = 3,971.18

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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.