Home / 7,427.02-11,139.59-2,428.98

Finding the Fourth Proportional to 7,427.02, 11,139.59 and 2,428.98

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Solution

The fourth proportional to 7,427.02, 11,139.59 and 2,428.98 is: 3,643.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,427.02 : 11,139.59 = 2,428.98 : x
  2. Step 2: Convert to fraction form
    7,427.02/11,139.59 = 2,428.98/x
  3. Step 3: Cross multiply
    7,427.02x = 11,139.59 × 2,428.98
  4. Step 4: Simplify right side
    7,427.02x = 27,057,841.32
  5. Step 5: Solve for x
    x = 27,057,841.32/7,427.02
  6. Step 6: Final answer
    x = 3,643.16

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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.