Home / 1,080.26-1,492.10-975.30

Finding the Fourth Proportional to 1,080.26, 1,492.10 and 975.30

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Solution

The fourth proportional to 1,080.26, 1,492.10 and 975.30 is: 1,347.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,080.26 : 1,492.10 = 975.30 : x
  2. Step 2: Convert to fraction form
    1,080.26/1,492.10 = 975.30/x
  3. Step 3: Cross multiply
    1,080.26x = 1,492.10 × 975.30
  4. Step 4: Simplify right side
    1,080.26x = 1,455,237.67
  5. Step 5: Solve for x
    x = 1,455,237.67/1,080.26
  6. Step 6: Final answer
    x = 1,347.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.