Home / 4,341.90-6,515.26-2,120.76

Finding the Fourth Proportional to 4,341.90, 6,515.26 and 2,120.76

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Solution

The fourth proportional to 4,341.90, 6,515.26 and 2,120.76 is: 3,182.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,341.90 : 6,515.26 = 2,120.76 : x
  2. Step 2: Convert to fraction form
    4,341.90/6,515.26 = 2,120.76/x
  3. Step 3: Cross multiply
    4,341.90x = 6,515.26 × 2,120.76
  4. Step 4: Simplify right side
    4,341.90x = 13,817,303.25
  5. Step 5: Solve for x
    x = 13,817,303.25/4,341.90
  6. Step 6: Final answer
    x = 3,182.32

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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.