Home / 5,298.61-7,946.39-2,178.08

Finding the Fourth Proportional to 5,298.61, 7,946.39 and 2,178.08

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Solution

The fourth proportional to 5,298.61, 7,946.39 and 2,178.08 is: 3,266.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,298.61 : 7,946.39 = 2,178.08 : x
  2. Step 2: Convert to fraction form
    5,298.61/7,946.39 = 2,178.08/x
  3. Step 3: Cross multiply
    5,298.61x = 7,946.39 × 2,178.08
  4. Step 4: Simplify right side
    5,298.61x = 17,307,862.24
  5. Step 5: Solve for x
    x = 17,307,862.24/5,298.61
  6. Step 6: Final answer
    x = 3,266.49

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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.