Home / 2,307.58-3,185.86-1,561.66

Finding the Fourth Proportional to 2,307.58, 3,185.86 and 1,561.66

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Solution

The fourth proportional to 2,307.58, 3,185.86 and 1,561.66 is: 2,156.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,307.58 : 3,185.86 = 1,561.66 : x
  2. Step 2: Convert to fraction form
    2,307.58/3,185.86 = 1,561.66/x
  3. Step 3: Cross multiply
    2,307.58x = 3,185.86 × 1,561.66
  4. Step 4: Simplify right side
    2,307.58x = 4,975,230.13
  5. Step 5: Solve for x
    x = 4,975,230.13/2,307.58
  6. Step 6: Final answer
    x = 2,156.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.