Home / 1,851.50-2,779.15-1,445.08

Finding the Fourth Proportional to 1,851.50, 2,779.15 and 1,445.08

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Solution

The fourth proportional to 1,851.50, 2,779.15 and 1,445.08 is: 2,169.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,851.50 : 2,779.15 = 1,445.08 : x
  2. Step 2: Convert to fraction form
    1,851.50/2,779.15 = 1,445.08/x
  3. Step 3: Cross multiply
    1,851.50x = 2,779.15 × 1,445.08
  4. Step 4: Simplify right side
    1,851.50x = 4,016,094.08
  5. Step 5: Solve for x
    x = 4,016,094.08/1,851.50
  6. Step 6: Final answer
    x = 2,169.10

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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.