Home / 5,177.28-7,770.88-4,030.40

Finding the Fourth Proportional to 5,177.28, 7,770.88 and 4,030.40

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Solution

The fourth proportional to 5,177.28, 7,770.88 and 4,030.40 is: 6,049.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,177.28 : 7,770.88 = 4,030.40 : x
  2. Step 2: Convert to fraction form
    5,177.28/7,770.88 = 4,030.40/x
  3. Step 3: Cross multiply
    5,177.28x = 7,770.88 × 4,030.40
  4. Step 4: Simplify right side
    5,177.28x = 31,319,754.75
  5. Step 5: Solve for x
    x = 31,319,754.75/5,177.28
  6. Step 6: Final answer
    x = 6,049.46

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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.