Home / 2,423.11-3,632.35-778.50

Finding the Fourth Proportional to 2,423.11, 3,632.35 and 778.50

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Solution

The fourth proportional to 2,423.11, 3,632.35 and 778.50 is: 1,167.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,423.11 : 3,632.35 = 778.50 : x
  2. Step 2: Convert to fraction form
    2,423.11/3,632.35 = 778.50/x
  3. Step 3: Cross multiply
    2,423.11x = 3,632.35 × 778.50
  4. Step 4: Simplify right side
    2,423.11x = 2,827,773.77
  5. Step 5: Solve for x
    x = 2,827,773.77/2,423.11
  6. Step 6: Final answer
    x = 1,167.00

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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.