Home / 7,447.95-10,278.33-4,090.77

Finding the Fourth Proportional to 7,447.95, 10,278.33 and 4,090.77

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Solution

The fourth proportional to 7,447.95, 10,278.33 and 4,090.77 is: 5,645.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,447.95 : 10,278.33 = 4,090.77 : x
  2. Step 2: Convert to fraction form
    7,447.95/10,278.33 = 4,090.77/x
  3. Step 3: Cross multiply
    7,447.95x = 10,278.33 × 4,090.77
  4. Step 4: Simplify right side
    7,447.95x = 42,046,284.01
  5. Step 5: Solve for x
    x = 42,046,284.01/7,447.95
  6. Step 6: Final answer
    x = 5,645.35

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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.