Home / 5,851.31-8,756.10-4,688.78

Finding the Fourth Proportional to 5,851.31, 8,756.10 and 4,688.78

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Solution

The fourth proportional to 5,851.31, 8,756.10 and 4,688.78 is: 7,016.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,851.31 : 8,756.10 = 4,688.78 : x
  2. Step 2: Convert to fraction form
    5,851.31/8,756.10 = 4,688.78/x
  3. Step 3: Cross multiply
    5,851.31x = 8,756.10 × 4,688.78
  4. Step 4: Simplify right side
    5,851.31x = 41,055,382.78
  5. Step 5: Solve for x
    x = 41,055,382.78/5,851.31
  6. Step 6: Final answer
    x = 7,016.45

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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.