Home / 4,988.40-7,482.60-3,117.30

Finding the Fourth Proportional to 4,988.40, 7,482.60 and 3,117.30

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Solution

The fourth proportional to 4,988.40, 7,482.60 and 3,117.30 is: 4,675.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,988.40 : 7,482.60 = 3,117.30 : x
  2. Step 2: Convert to fraction form
    4,988.40/7,482.60 = 3,117.30/x
  3. Step 3: Cross multiply
    4,988.40x = 7,482.60 × 3,117.30
  4. Step 4: Simplify right side
    4,988.40x = 23,325,508.98
  5. Step 5: Solve for x
    x = 23,325,508.98/4,988.40
  6. Step 6: Final answer
    x = 4,675.95

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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.