Home / 7,637.20-10,538.85-4,492.78

Finding the Fourth Proportional to 7,637.20, 10,538.85 and 4,492.78

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Solution

The fourth proportional to 7,637.20, 10,538.85 and 4,492.78 is: 6,199.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,637.20 : 10,538.85 = 4,492.78 : x
  2. Step 2: Convert to fraction form
    7,637.20/10,538.85 = 4,492.78/x
  3. Step 3: Cross multiply
    7,637.20x = 10,538.85 × 4,492.78
  4. Step 4: Simplify right side
    7,637.20x = 47,348,734.50
  5. Step 5: Solve for x
    x = 47,348,734.50/7,637.20
  6. Step 6: Final answer
    x = 6,199.75

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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.