Home / 2,377.04-3,280.40-1,329.20

Finding the Fourth Proportional to 2,377.04, 3,280.40 and 1,329.20

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Solution

The fourth proportional to 2,377.04, 3,280.40 and 1,329.20 is: 1,834.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,377.04 : 3,280.40 = 1,329.20 : x
  2. Step 2: Convert to fraction form
    2,377.04/3,280.40 = 1,329.20/x
  3. Step 3: Cross multiply
    2,377.04x = 3,280.40 × 1,329.20
  4. Step 4: Simplify right side
    2,377.04x = 4,360,307.68
  5. Step 5: Solve for x
    x = 4,360,307.68/2,377.04
  6. Step 6: Final answer
    x = 1,834.34

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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.