Home / 7,486.02-10,331.19-4,128.84

Finding the Fourth Proportional to 7,486.02, 10,331.19 and 4,128.84

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Solution

The fourth proportional to 7,486.02, 10,331.19 and 4,128.84 is: 5,698.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,486.02 : 10,331.19 = 4,128.84 : x
  2. Step 2: Convert to fraction form
    7,486.02/10,331.19 = 4,128.84/x
  3. Step 3: Cross multiply
    7,486.02x = 10,331.19 × 4,128.84
  4. Step 4: Simplify right side
    7,486.02x = 42,655,830.52
  5. Step 5: Solve for x
    x = 42,655,830.52/7,486.02
  6. Step 6: Final answer
    x = 5,698.07

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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.