Home / 2,306.10-3,457.93-918.30

Finding the Fourth Proportional to 2,306.10, 3,457.93 and 918.30

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Solution

The fourth proportional to 2,306.10, 3,457.93 and 918.30 is: 1,376.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,306.10 : 3,457.93 = 918.30 : x
  2. Step 2: Convert to fraction form
    2,306.10/3,457.93 = 918.30/x
  3. Step 3: Cross multiply
    2,306.10x = 3,457.93 × 918.30
  4. Step 4: Simplify right side
    2,306.10x = 3,175,417.12
  5. Step 5: Solve for x
    x = 3,175,417.12/2,306.10
  6. Step 6: Final answer
    x = 1,376.96

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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.