Home / 6,861.02-10,291.51-2,478.47

Finding the Fourth Proportional to 6,861.02, 10,291.51 and 2,478.47

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Solution

The fourth proportional to 6,861.02, 10,291.51 and 2,478.47 is: 3,717.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,861.02 : 10,291.51 = 2,478.47 : x
  2. Step 2: Convert to fraction form
    6,861.02/10,291.51 = 2,478.47/x
  3. Step 3: Cross multiply
    6,861.02x = 10,291.51 × 2,478.47
  4. Step 4: Simplify right side
    6,861.02x = 25,507,186.40
  5. Step 5: Solve for x
    x = 25,507,186.40/6,861.02
  6. Step 6: Final answer
    x = 3,717.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.