Home / 2,153.13-2,970.95-1,269.10

Finding the Fourth Proportional to 2,153.13, 2,970.95 and 1,269.10

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Solution

The fourth proportional to 2,153.13, 2,970.95 and 1,269.10 is: 1,751.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,153.13 : 2,970.95 = 1,269.10 : x
  2. Step 2: Convert to fraction form
    2,153.13/2,970.95 = 1,269.10/x
  3. Step 3: Cross multiply
    2,153.13x = 2,970.95 × 1,269.10
  4. Step 4: Simplify right side
    2,153.13x = 3,770,432.65
  5. Step 5: Solve for x
    x = 3,770,432.65/2,153.13
  6. Step 6: Final answer
    x = 1,751.14

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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.