Home / 3,125.47-4,689.73-1,277.10

Finding the Fourth Proportional to 3,125.47, 4,689.73 and 1,277.10

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Solution

The fourth proportional to 3,125.47, 4,689.73 and 1,277.10 is: 1,916.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,125.47 : 4,689.73 = 1,277.10 : x
  2. Step 2: Convert to fraction form
    3,125.47/4,689.73 = 1,277.10/x
  3. Step 3: Cross multiply
    3,125.47x = 4,689.73 × 1,277.10
  4. Step 4: Simplify right side
    3,125.47x = 5,989,254.18
  5. Step 5: Solve for x
    x = 5,989,254.18/3,125.47
  6. Step 6: Final answer
    x = 1,916.27

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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.