Home / 1,901.19-2,622.21-1,271.51

Finding the Fourth Proportional to 1,901.19, 2,622.21 and 1,271.51

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Solution

The fourth proportional to 1,901.19, 2,622.21 and 1,271.51 is: 1,753.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,901.19 : 2,622.21 = 1,271.51 : x
  2. Step 2: Convert to fraction form
    1,901.19/2,622.21 = 1,271.51/x
  3. Step 3: Cross multiply
    1,901.19x = 2,622.21 × 1,271.51
  4. Step 4: Simplify right side
    1,901.19x = 3,334,153.13
  5. Step 5: Solve for x
    x = 3,334,153.13/1,901.19
  6. Step 6: Final answer
    x = 1,753.72

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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.