Home / 3,622.86-5,434.29-1,430.46

Finding the Fourth Proportional to 3,622.86, 5,434.29 and 1,430.46

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Solution

The fourth proportional to 3,622.86, 5,434.29 and 1,430.46 is: 2,145.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,622.86 : 5,434.29 = 1,430.46 : x
  2. Step 2: Convert to fraction form
    3,622.86/5,434.29 = 1,430.46/x
  3. Step 3: Cross multiply
    3,622.86x = 5,434.29 × 1,430.46
  4. Step 4: Simplify right side
    3,622.86x = 7,773,534.47
  5. Step 5: Solve for x
    x = 7,773,534.47/3,622.86
  6. Step 6: Final answer
    x = 2,145.69

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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.