Home / 1,972.51-2,722.26-1,088.32

Finding the Fourth Proportional to 1,972.51, 2,722.26 and 1,088.32

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Solution

The fourth proportional to 1,972.51, 2,722.26 and 1,088.32 is: 1,501.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,972.51 : 2,722.26 = 1,088.32 : x
  2. Step 2: Convert to fraction form
    1,972.51/2,722.26 = 1,088.32/x
  3. Step 3: Cross multiply
    1,972.51x = 2,722.26 × 1,088.32
  4. Step 4: Simplify right side
    1,972.51x = 2,962,687.41
  5. Step 5: Solve for x
    x = 2,962,687.41/1,972.51
  6. Step 6: Final answer
    x = 1,501.99

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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.