Home / 4,740.60-7,111.89-1,818.89

Finding the Fourth Proportional to 4,740.60, 7,111.89 and 1,818.89

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Solution

The fourth proportional to 4,740.60, 7,111.89 and 1,818.89 is: 2,728.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,740.60 : 7,111.89 = 1,818.89 : x
  2. Step 2: Convert to fraction form
    4,740.60/7,111.89 = 1,818.89/x
  3. Step 3: Cross multiply
    4,740.60x = 7,111.89 × 1,818.89
  4. Step 4: Simplify right side
    4,740.60x = 12,935,710.04
  5. Step 5: Solve for x
    x = 12,935,710.04/4,740.60
  6. Step 6: Final answer
    x = 2,728.71

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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.