Home / 1,811.47-2,714.55-1,070.32

Finding the Fourth Proportional to 1,811.47, 2,714.55 and 1,070.32

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Solution

The fourth proportional to 1,811.47, 2,714.55 and 1,070.32 is: 1,603.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,811.47 : 2,714.55 = 1,070.32 : x
  2. Step 2: Convert to fraction form
    1,811.47/2,714.55 = 1,070.32/x
  3. Step 3: Cross multiply
    1,811.47x = 2,714.55 × 1,070.32
  4. Step 4: Simplify right side
    1,811.47x = 2,905,431.80
  5. Step 5: Solve for x
    x = 2,905,431.80/1,811.47
  6. Step 6: Final answer
    x = 1,603.91

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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.