Home / 4,871.60-7,307.40-4,842.80

Finding the Fourth Proportional to 4,871.60, 7,307.40 and 4,842.80

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Solution

The fourth proportional to 4,871.60, 7,307.40 and 4,842.80 is: 7,264.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,871.60 : 7,307.40 = 4,842.80 : x
  2. Step 2: Convert to fraction form
    4,871.60/7,307.40 = 4,842.80/x
  3. Step 3: Cross multiply
    4,871.60x = 7,307.40 × 4,842.80
  4. Step 4: Simplify right side
    4,871.60x = 35,388,276.72
  5. Step 5: Solve for x
    x = 35,388,276.72/4,871.60
  6. Step 6: Final answer
    x = 7,264.20

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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.