Home / 1,410.24-2,115.36-384.24

Finding the Fourth Proportional to 1,410.24, 2,115.36 and 384.24

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Solution

The fourth proportional to 1,410.24, 2,115.36 and 384.24 is: 576.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,410.24 : 2,115.36 = 384.24 : x
  2. Step 2: Convert to fraction form
    1,410.24/2,115.36 = 384.24/x
  3. Step 3: Cross multiply
    1,410.24x = 2,115.36 × 384.24
  4. Step 4: Simplify right side
    1,410.24x = 812,805.93
  5. Step 5: Solve for x
    x = 812,805.93/1,410.24
  6. Step 6: Final answer
    x = 576.36

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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.