Home / 3,430.34-5,145.51-1,580.91

Finding the Fourth Proportional to 3,430.34, 5,145.51 and 1,580.91

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Solution

The fourth proportional to 3,430.34, 5,145.51 and 1,580.91 is: 2,371.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,430.34 : 5,145.51 = 1,580.91 : x
  2. Step 2: Convert to fraction form
    3,430.34/5,145.51 = 1,580.91/x
  3. Step 3: Cross multiply
    3,430.34x = 5,145.51 × 1,580.91
  4. Step 4: Simplify right side
    3,430.34x = 8,134,588.21
  5. Step 5: Solve for x
    x = 8,134,588.21/3,430.34
  6. Step 6: Final answer
    x = 2,371.37

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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.