Home / 1,353.93-2,030.85-380.01

Finding the Fourth Proportional to 1,353.93, 2,030.85 and 380.01

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Solution

The fourth proportional to 1,353.93, 2,030.85 and 380.01 is: 570.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,353.93 : 2,030.85 = 380.01 : x
  2. Step 2: Convert to fraction form
    1,353.93/2,030.85 = 380.01/x
  3. Step 3: Cross multiply
    1,353.93x = 2,030.85 × 380.01
  4. Step 4: Simplify right side
    1,353.93x = 771,743.31
  5. Step 5: Solve for x
    x = 771,743.31/1,353.93
  6. Step 6: Final answer
    x = 570.00

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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.