Home / 2,875.08-4,312.31-1,779.15

Finding the Fourth Proportional to 2,875.08, 4,312.31 and 1,779.15

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Solution

The fourth proportional to 2,875.08, 4,312.31 and 1,779.15 is: 2,668.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,875.08 : 4,312.31 = 1,779.15 : x
  2. Step 2: Convert to fraction form
    2,875.08/4,312.31 = 1,779.15/x
  3. Step 3: Cross multiply
    2,875.08x = 4,312.31 × 1,779.15
  4. Step 4: Simplify right side
    2,875.08x = 7,672,246.34
  5. Step 5: Solve for x
    x = 7,672,246.34/2,875.08
  6. Step 6: Final answer
    x = 2,668.53

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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.