Home / 1,552.70-2,322.30-1,389.35

Finding the Fourth Proportional to 1,552.70, 2,322.30 and 1,389.35

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Solution

The fourth proportional to 1,552.70, 2,322.30 and 1,389.35 is: 2,077.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,552.70 : 2,322.30 = 1,389.35 : x
  2. Step 2: Convert to fraction form
    1,552.70/2,322.30 = 1,389.35/x
  3. Step 3: Cross multiply
    1,552.70x = 2,322.30 × 1,389.35
  4. Step 4: Simplify right side
    1,552.70x = 3,226,487.51
  5. Step 5: Solve for x
    x = 3,226,487.51/1,552.70
  6. Step 6: Final answer
    x = 2,077.99

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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.