Home / 4,852.52-7,278.76-1,390.04

Finding the Fourth Proportional to 4,852.52, 7,278.76 and 1,390.04

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Solution

The fourth proportional to 4,852.52, 7,278.76 and 1,390.04 is: 2,085.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,852.52 : 7,278.76 = 1,390.04 : x
  2. Step 2: Convert to fraction form
    4,852.52/7,278.76 = 1,390.04/x
  3. Step 3: Cross multiply
    4,852.52x = 7,278.76 × 1,390.04
  4. Step 4: Simplify right side
    4,852.52x = 10,117,767.55
  5. Step 5: Solve for x
    x = 10,117,767.55/4,852.52
  6. Step 6: Final answer
    x = 2,085.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.