Home / 1,478.04-2,215.62-1,416.12

Finding the Fourth Proportional to 1,478.04, 2,215.62 and 1,416.12

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Solution

The fourth proportional to 1,478.04, 2,215.62 and 1,416.12 is: 2,122.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,478.04 : 2,215.62 = 1,416.12 : x
  2. Step 2: Convert to fraction form
    1,478.04/2,215.62 = 1,416.12/x
  3. Step 3: Cross multiply
    1,478.04x = 2,215.62 × 1,416.12
  4. Step 4: Simplify right side
    1,478.04x = 3,137,583.79
  5. Step 5: Solve for x
    x = 3,137,583.79/1,478.04
  6. Step 6: Final answer
    x = 2,122.80

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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.