Home / 1,518.32-2,095.32-929.18

Finding the Fourth Proportional to 1,518.32, 2,095.32 and 929.18

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Solution

The fourth proportional to 1,518.32, 2,095.32 and 929.18 is: 1,282.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,518.32 : 2,095.32 = 929.18 : x
  2. Step 2: Convert to fraction form
    1,518.32/2,095.32 = 929.18/x
  3. Step 3: Cross multiply
    1,518.32x = 2,095.32 × 929.18
  4. Step 4: Simplify right side
    1,518.32x = 1,946,929.44
  5. Step 5: Solve for x
    x = 1,946,929.44/1,518.32
  6. Step 6: Final answer
    x = 1,282.29

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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.