Home / 6,280.89-9,421.40-1,663.89

Finding the Fourth Proportional to 6,280.89, 9,421.40 and 1,663.89

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Solution

The fourth proportional to 6,280.89, 9,421.40 and 1,663.89 is: 2,495.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,280.89 : 9,421.40 = 1,663.89 : x
  2. Step 2: Convert to fraction form
    6,280.89/9,421.40 = 1,663.89/x
  3. Step 3: Cross multiply
    6,280.89x = 9,421.40 × 1,663.89
  4. Step 4: Simplify right side
    6,280.89x = 15,676,164.93
  5. Step 5: Solve for x
    x = 15,676,164.93/6,280.89
  6. Step 6: Final answer
    x = 2,495.85

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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.