Home / 2,948.15-4,068.77-1,689.27

Finding the Fourth Proportional to 2,948.15, 4,068.77 and 1,689.27

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Solution

The fourth proportional to 2,948.15, 4,068.77 and 1,689.27 is: 2,331.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,948.15 : 4,068.77 = 1,689.27 : x
  2. Step 2: Convert to fraction form
    2,948.15/4,068.77 = 1,689.27/x
  3. Step 3: Cross multiply
    2,948.15x = 4,068.77 × 1,689.27
  4. Step 4: Simplify right side
    2,948.15x = 6,873,242.65
  5. Step 5: Solve for x
    x = 6,873,242.65/2,948.15
  6. Step 6: Final answer
    x = 2,331.38

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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.