Home / 2,271.24-3,134.43-1,386.99

Finding the Fourth Proportional to 2,271.24, 3,134.43 and 1,386.99

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Solution

The fourth proportional to 2,271.24, 3,134.43 and 1,386.99 is: 1,914.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,271.24 : 3,134.43 = 1,386.99 : x
  2. Step 2: Convert to fraction form
    2,271.24/3,134.43 = 1,386.99/x
  3. Step 3: Cross multiply
    2,271.24x = 3,134.43 × 1,386.99
  4. Step 4: Simplify right side
    2,271.24x = 4,347,423.07
  5. Step 5: Solve for x
    x = 4,347,423.07/2,271.24
  6. Step 6: Final answer
    x = 1,914.12

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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.