Home / 1,485.62-2,050.29-864.50

Finding the Fourth Proportional to 1,485.62, 2,050.29 and 864.50

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Solution

The fourth proportional to 1,485.62, 2,050.29 and 864.50 is: 1,193.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,485.62 : 2,050.29 = 864.50 : x
  2. Step 2: Convert to fraction form
    1,485.62/2,050.29 = 864.50/x
  3. Step 3: Cross multiply
    1,485.62x = 2,050.29 × 864.50
  4. Step 4: Simplify right side
    1,485.62x = 1,772,475.71
  5. Step 5: Solve for x
    x = 1,772,475.71/1,485.62
  6. Step 6: Final answer
    x = 1,193.09

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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.