Home / 2,300.80-3,175.08-1,306.10

Finding the Fourth Proportional to 2,300.80, 3,175.08 and 1,306.10

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Solution

The fourth proportional to 2,300.80, 3,175.08 and 1,306.10 is: 1,802.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,300.80 : 3,175.08 = 1,306.10 : x
  2. Step 2: Convert to fraction form
    2,300.80/3,175.08 = 1,306.10/x
  3. Step 3: Cross multiply
    2,300.80x = 3,175.08 × 1,306.10
  4. Step 4: Simplify right side
    2,300.80x = 4,146,971.99
  5. Step 5: Solve for x
    x = 4,146,971.99/2,300.80
  6. Step 6: Final answer
    x = 1,802.40

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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.