Home / 2,378.04-3,281.68-1,330.10

Finding the Fourth Proportional to 2,378.04, 3,281.68 and 1,330.10

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Solution

The fourth proportional to 2,378.04, 3,281.68 and 1,330.10 is: 1,835.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,378.04 : 3,281.68 = 1,330.10 : x
  2. Step 2: Convert to fraction form
    2,378.04/3,281.68 = 1,330.10/x
  3. Step 3: Cross multiply
    2,378.04x = 3,281.68 × 1,330.10
  4. Step 4: Simplify right side
    2,378.04x = 4,364,962.57
  5. Step 5: Solve for x
    x = 4,364,962.57/2,378.04
  6. Step 6: Final answer
    x = 1,835.53

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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.