Home / 5,405.07-7,458.98-2,921.07

Finding the Fourth Proportional to 5,405.07, 7,458.98 and 2,921.07

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Solution

The fourth proportional to 5,405.07, 7,458.98 and 2,921.07 is: 4,031.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,405.07 : 7,458.98 = 2,921.07 : x
  2. Step 2: Convert to fraction form
    5,405.07/7,458.98 = 2,921.07/x
  3. Step 3: Cross multiply
    5,405.07x = 7,458.98 × 2,921.07
  4. Step 4: Simplify right side
    5,405.07x = 21,788,202.71
  5. Step 5: Solve for x
    x = 21,788,202.71/5,405.07
  6. Step 6: Final answer
    x = 4,031.07

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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.