Home / 7,101-9,799.72-3,957.19

Finding the Fourth Proportional to 7,101, 9,799.72 and 3,957.19

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Solution

The fourth proportional to 7,101, 9,799.72 and 3,957.19 is: 5,461.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,101 : 9,799.72 = 3,957.19 : x
  2. Step 2: Convert to fraction form
    7,101/9,799.72 = 3,957.19/x
  3. Step 3: Cross multiply
    7,101x = 9,799.72 × 3,957.19
  4. Step 4: Simplify right side
    7,101x = 38,779,319.59
  5. Step 5: Solve for x
    x = 38,779,319.59/7,101
  6. Step 6: Final answer
    x = 5,461.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.