Home / 2,909.10-4,014.50-1,582.81

Finding the Fourth Proportional to 2,909.10, 4,014.50 and 1,582.81

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Solution

The fourth proportional to 2,909.10, 4,014.50 and 1,582.81 is: 2,184.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,909.10 : 4,014.50 = 1,582.81 : x
  2. Step 2: Convert to fraction form
    2,909.10/4,014.50 = 1,582.81/x
  3. Step 3: Cross multiply
    2,909.10x = 4,014.50 × 1,582.81
  4. Step 4: Simplify right side
    2,909.10x = 6,354,190.75
  5. Step 5: Solve for x
    x = 6,354,190.75/2,909.10
  6. Step 6: Final answer
    x = 2,184.25

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1.5x scale

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.