Home / 2,631.36-3,929.98-2,384.07

Finding the Fourth Proportional to 2,631.36, 3,929.98 and 2,384.07

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Solution

The fourth proportional to 2,631.36, 3,929.98 and 2,384.07 is: 3,560.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,631.36 : 3,929.98 = 2,384.07 : x
  2. Step 2: Convert to fraction form
    2,631.36/3,929.98 = 2,384.07/x
  3. Step 3: Cross multiply
    2,631.36x = 3,929.98 × 2,384.07
  4. Step 4: Simplify right side
    2,631.36x = 9,369,347.42
  5. Step 5: Solve for x
    x = 9,369,347.42/2,631.36
  6. Step 6: Final answer
    x = 3,560.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.