Home / 1,110.04-1,665.74-417.20

Finding the Fourth Proportional to 1,110.04, 1,665.74 and 417.20

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Solution

The fourth proportional to 1,110.04, 1,665.74 and 417.20 is: 626.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,110.04 : 1,665.74 = 417.20 : x
  2. Step 2: Convert to fraction form
    1,110.04/1,665.74 = 417.20/x
  3. Step 3: Cross multiply
    1,110.04x = 1,665.74 × 417.20
  4. Step 4: Simplify right side
    1,110.04x = 694,946.73
  5. Step 5: Solve for x
    x = 694,946.73/1,110.04
  6. Step 6: Final answer
    x = 626.06

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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.