Home / 2,948.18-4,068.65-1,621.91

Finding the Fourth Proportional to 2,948.18, 4,068.65 and 1,621.91

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Solution

The fourth proportional to 2,948.18, 4,068.65 and 1,621.91 is: 2,238.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,948.18 : 4,068.65 = 1,621.91 : x
  2. Step 2: Convert to fraction form
    2,948.18/4,068.65 = 1,621.91/x
  3. Step 3: Cross multiply
    2,948.18x = 4,068.65 × 1,621.91
  4. Step 4: Simplify right side
    2,948.18x = 6,598,998.35
  5. Step 5: Solve for x
    x = 6,598,998.35/2,948.18
  6. Step 6: Final answer
    x = 2,238.33

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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.