Home / 7,001.04-9,661.40-3,857.20

Finding the Fourth Proportional to 7,001.04, 9,661.40 and 3,857.20

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Solution

The fourth proportional to 7,001.04, 9,661.40 and 3,857.20 is: 5,322.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,001.04 : 9,661.40 = 3,857.20 : x
  2. Step 2: Convert to fraction form
    7,001.04/9,661.40 = 3,857.20/x
  3. Step 3: Cross multiply
    7,001.04x = 9,661.40 × 3,857.20
  4. Step 4: Simplify right side
    7,001.04x = 37,265,952.08
  5. Step 5: Solve for x
    x = 37,265,952.08/7,001.04
  6. Step 6: Final answer
    x = 5,322.92

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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.