Home / 2,875.12-4,312.10-794.60

Finding the Fourth Proportional to 2,875.12, 4,312.10 and 794.60

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Solution

The fourth proportional to 2,875.12, 4,312.10 and 794.60 is: 1,191.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,875.12 : 4,312.10 = 794.60 : x
  2. Step 2: Convert to fraction form
    2,875.12/4,312.10 = 794.60/x
  3. Step 3: Cross multiply
    2,875.12x = 4,312.10 × 794.60
  4. Step 4: Simplify right side
    2,875.12x = 3,426,394.66
  5. Step 5: Solve for x
    x = 3,426,394.66/2,875.12
  6. Step 6: Final answer
    x = 1,191.74

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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.