Home / 1,250.19-1,722.74-1,030.68

Finding the Fourth Proportional to 1,250.19, 1,722.74 and 1,030.68

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Solution

The fourth proportional to 1,250.19, 1,722.74 and 1,030.68 is: 1,420.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,250.19 : 1,722.74 = 1,030.68 : x
  2. Step 2: Convert to fraction form
    1,250.19/1,722.74 = 1,030.68/x
  3. Step 3: Cross multiply
    1,250.19x = 1,722.74 × 1,030.68
  4. Step 4: Simplify right side
    1,250.19x = 1,775,588.51
  5. Step 5: Solve for x
    x = 1,775,588.51/1,250.19
  6. Step 6: Final answer
    x = 1,420.25

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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.