Home / 1,612.04-2,418.01-687.13

Finding the Fourth Proportional to 1,612.04, 2,418.01 and 687.13

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Solution

The fourth proportional to 1,612.04, 2,418.01 and 687.13 is: 1,030.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,612.04 : 2,418.01 = 687.13 : x
  2. Step 2: Convert to fraction form
    1,612.04/2,418.01 = 687.13/x
  3. Step 3: Cross multiply
    1,612.04x = 2,418.01 × 687.13
  4. Step 4: Simplify right side
    1,612.04x = 1,661,479.45
  5. Step 5: Solve for x
    x = 1,661,479.45/1,612.04
  6. Step 6: Final answer
    x = 1,030.67

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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.