Home / 3,127.93-4,317.37-1,948.30

Finding the Fourth Proportional to 3,127.93, 4,317.37 and 1,948.30

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Solution

The fourth proportional to 3,127.93, 4,317.37 and 1,948.30 is: 2,689.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,127.93 : 4,317.37 = 1,948.30 : x
  2. Step 2: Convert to fraction form
    3,127.93/4,317.37 = 1,948.30/x
  3. Step 3: Cross multiply
    3,127.93x = 4,317.37 × 1,948.30
  4. Step 4: Simplify right side
    3,127.93x = 8,411,516.31
  5. Step 5: Solve for x
    x = 8,411,516.31/3,127.93
  6. Step 6: Final answer
    x = 2,689.17

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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.