Home / 1,172.60-1,625.59-1,110.18

Finding the Fourth Proportional to 1,172.60, 1,625.59 and 1,110.18

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Solution

The fourth proportional to 1,172.60, 1,625.59 and 1,110.18 is: 1,539.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,172.60 : 1,625.59 = 1,110.18 : x
  2. Step 2: Convert to fraction form
    1,172.60/1,625.59 = 1,110.18/x
  3. Step 3: Cross multiply
    1,172.60x = 1,625.59 × 1,110.18
  4. Step 4: Simplify right side
    1,172.60x = 1,804,690.67
  5. Step 5: Solve for x
    x = 1,804,690.67/1,172.60
  6. Step 6: Final answer
    x = 1,539.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.