Home / 2,319.90-3,477.90-1,086.66

Finding the Fourth Proportional to 2,319.90, 3,477.90 and 1,086.66

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Solution

The fourth proportional to 2,319.90, 3,477.90 and 1,086.66 is: 1,629.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,319.90 : 3,477.90 = 1,086.66 : x
  2. Step 2: Convert to fraction form
    2,319.90/3,477.90 = 1,086.66/x
  3. Step 3: Cross multiply
    2,319.90x = 3,477.90 × 1,086.66
  4. Step 4: Simplify right side
    2,319.90x = 3,779,294.81
  5. Step 5: Solve for x
    x = 3,779,294.81/2,319.90
  6. Step 6: Final answer
    x = 1,629.08

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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.