Home / 3,124.04-4,303.85-2,178.11

Finding the Fourth Proportional to 3,124.04, 4,303.85 and 2,178.11

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Solution

The fourth proportional to 3,124.04, 4,303.85 and 2,178.11 is: 3,000.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,124.04 : 4,303.85 = 2,178.11 : x
  2. Step 2: Convert to fraction form
    3,124.04/4,303.85 = 2,178.11/x
  3. Step 3: Cross multiply
    3,124.04x = 4,303.85 × 2,178.11
  4. Step 4: Simplify right side
    3,124.04x = 9,374,246.64
  5. Step 5: Solve for x
    x = 9,374,246.64/3,124.04
  6. Step 6: Final answer
    x = 3,000.69

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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.