Home / 1,615.83-2,421.66-1,406.73

Finding the Fourth Proportional to 1,615.83, 2,421.66 and 1,406.73

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Solution

The fourth proportional to 1,615.83, 2,421.66 and 1,406.73 is: 2,108.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,615.83 : 2,421.66 = 1,406.73 : x
  2. Step 2: Convert to fraction form
    1,615.83/2,421.66 = 1,406.73/x
  3. Step 3: Cross multiply
    1,615.83x = 2,421.66 × 1,406.73
  4. Step 4: Simplify right side
    1,615.83x = 3,406,621.77
  5. Step 5: Solve for x
    x = 3,406,621.77/1,615.83
  6. Step 6: Final answer
    x = 2,108.28

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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.