Home / 4,988.87-7,455.72-4,700.80

Finding the Fourth Proportional to 4,988.87, 7,455.72 and 4,700.80

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Solution

The fourth proportional to 4,988.87, 7,455.72 and 4,700.80 is: 7,025.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,988.87 : 7,455.72 = 4,700.80 : x
  2. Step 2: Convert to fraction form
    4,988.87/7,455.72 = 4,700.80/x
  3. Step 3: Cross multiply
    4,988.87x = 7,455.72 × 4,700.80
  4. Step 4: Simplify right side
    4,988.87x = 35,047,875.52
  5. Step 5: Solve for x
    x = 35,047,875.52/4,988.87
  6. Step 6: Final answer
    x = 7,025.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.