Home / 6,870.30-10,302.04-2,189.70

Finding the Fourth Proportional to 6,870.30, 10,302.04 and 2,189.70

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Solution

The fourth proportional to 6,870.30, 10,302.04 and 2,189.70 is: 3,283.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,870.30 : 10,302.04 = 2,189.70 : x
  2. Step 2: Convert to fraction form
    6,870.30/10,302.04 = 2,189.70/x
  3. Step 3: Cross multiply
    6,870.30x = 10,302.04 × 2,189.70
  4. Step 4: Simplify right side
    6,870.30x = 22,558,371.51
  5. Step 5: Solve for x
    x = 22,558,371.51/6,870.30
  6. Step 6: Final answer
    x = 3,283.46

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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.