Home / 5,405.74-8,109.51-1,707.10

Finding the Fourth Proportional to 5,405.74, 8,109.51 and 1,707.10

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Solution

The fourth proportional to 5,405.74, 8,109.51 and 1,707.10 is: 2,560.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,405.74 : 8,109.51 = 1,707.10 : x
  2. Step 2: Convert to fraction form
    5,405.74/8,109.51 = 1,707.10/x
  3. Step 3: Cross multiply
    5,405.74x = 8,109.51 × 1,707.10
  4. Step 4: Simplify right side
    5,405.74x = 13,843,744.52
  5. Step 5: Solve for x
    x = 13,843,744.52/5,405.74
  6. Step 6: Final answer
    x = 2,560.93

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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.