Home / 5,246.31-7,240.04-2,888.47

Finding the Fourth Proportional to 5,246.31, 7,240.04 and 2,888.47

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Solution

The fourth proportional to 5,246.31, 7,240.04 and 2,888.47 is: 3,986.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,246.31 : 7,240.04 = 2,888.47 : x
  2. Step 2: Convert to fraction form
    5,246.31/7,240.04 = 2,888.47/x
  3. Step 3: Cross multiply
    5,246.31x = 7,240.04 × 2,888.47
  4. Step 4: Simplify right side
    5,246.31x = 20,912,638.34
  5. Step 5: Solve for x
    x = 20,912,638.34/5,246.31
  6. Step 6: Final answer
    x = 3,986.16

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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.