Home / 1,533.96-2,117.67-1,039.20

Finding the Fourth Proportional to 1,533.96, 2,117.67 and 1,039.20

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Solution

The fourth proportional to 1,533.96, 2,117.67 and 1,039.20 is: 1,434.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,533.96 : 2,117.67 = 1,039.20 : x
  2. Step 2: Convert to fraction form
    1,533.96/2,117.67 = 1,039.20/x
  3. Step 3: Cross multiply
    1,533.96x = 2,117.67 × 1,039.20
  4. Step 4: Simplify right side
    1,533.96x = 2,200,682.66
  5. Step 5: Solve for x
    x = 2,200,682.66/1,533.96
  6. Step 6: Final answer
    x = 1,434.64

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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.