Home / 1,110.80-1,666.15-370.36

Finding the Fourth Proportional to 1,110.80, 1,666.15 and 370.36

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Solution

The fourth proportional to 1,110.80, 1,666.15 and 370.36 is: 555.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,110.80 : 1,666.15 = 370.36 : x
  2. Step 2: Convert to fraction form
    1,110.80/1,666.15 = 370.36/x
  3. Step 3: Cross multiply
    1,110.80x = 1,666.15 × 370.36
  4. Step 4: Simplify right side
    1,110.80x = 617,070.22
  5. Step 5: Solve for x
    x = 617,070.22/1,110.80
  6. Step 6: Final answer
    x = 555.52

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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.