Home / 2,124.16-2,929.30-1,377.84

Finding the Fourth Proportional to 2,124.16, 2,929.30 and 1,377.84

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Solution

The fourth proportional to 2,124.16, 2,929.30 and 1,377.84 is: 1,900.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,124.16 : 2,929.30 = 1,377.84 : x
  2. Step 2: Convert to fraction form
    2,124.16/2,929.30 = 1,377.84/x
  3. Step 3: Cross multiply
    2,124.16x = 2,929.30 × 1,377.84
  4. Step 4: Simplify right side
    2,124.16x = 4,036,114.25
  5. Step 5: Solve for x
    x = 4,036,114.25/2,124.16
  6. Step 6: Final answer
    x = 1,900.10

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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.