Home / 5,389.41-7,437.29-2,999.40

Finding the Fourth Proportional to 5,389.41, 7,437.29 and 2,999.40

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Solution

The fourth proportional to 5,389.41, 7,437.29 and 2,999.40 is: 4,139.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,389.41 : 7,437.29 = 2,999.40 : x
  2. Step 2: Convert to fraction form
    5,389.41/7,437.29 = 2,999.40/x
  3. Step 3: Cross multiply
    5,389.41x = 7,437.29 × 2,999.40
  4. Step 4: Simplify right side
    5,389.41x = 22,307,392.63
  5. Step 5: Solve for x
    x = 22,307,392.63/5,389.41
  6. Step 6: Final answer
    x = 4,139.12

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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.