Home / 2,424.16-3,636.80-864.08

Finding the Fourth Proportional to 2,424.16, 3,636.80 and 864.08

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Solution

The fourth proportional to 2,424.16, 3,636.80 and 864.08 is: 1,296.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,424.16 : 3,636.80 = 864.08 : x
  2. Step 2: Convert to fraction form
    2,424.16/3,636.80 = 864.08/x
  3. Step 3: Cross multiply
    2,424.16x = 3,636.80 × 864.08
  4. Step 4: Simplify right side
    2,424.16x = 3,142,486.14
  5. Step 5: Solve for x
    x = 3,142,486.14/2,424.16
  6. Step 6: Final answer
    x = 1,296.32

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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.