Home / 4,762.40-7,140.90-2,162.12

Finding the Fourth Proportional to 4,762.40, 7,140.90 and 2,162.12

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Solution

The fourth proportional to 4,762.40, 7,140.90 and 2,162.12 is: 3,241.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,762.40 : 7,140.90 = 2,162.12 : x
  2. Step 2: Convert to fraction form
    4,762.40/7,140.90 = 2,162.12/x
  3. Step 3: Cross multiply
    4,762.40x = 7,140.90 × 2,162.12
  4. Step 4: Simplify right side
    4,762.40x = 15,439,482.71
  5. Step 5: Solve for x
    x = 15,439,482.71/4,762.40
  6. Step 6: Final answer
    x = 3,241.95

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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.