Home / 5,389.57-7,437.42-2,999.46

Finding the Fourth Proportional to 5,389.57, 7,437.42 and 2,999.46

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Solution

The fourth proportional to 5,389.57, 7,437.42 and 2,999.46 is: 4,139.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,389.57 : 7,437.42 = 2,999.46 : x
  2. Step 2: Convert to fraction form
    5,389.57/7,437.42 = 2,999.46/x
  3. Step 3: Cross multiply
    5,389.57x = 7,437.42 × 2,999.46
  4. Step 4: Simplify right side
    5,389.57x = 22,308,271.68
  5. Step 5: Solve for x
    x = 22,308,271.68/5,389.57
  6. Step 6: Final answer
    x = 4,139.16

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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.