Home / 4,242.18-6,362.73-1,320.51

Finding the Fourth Proportional to 4,242.18, 6,362.73 and 1,320.51

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Solution

The fourth proportional to 4,242.18, 6,362.73 and 1,320.51 is: 1,980.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,242.18 : 6,362.73 = 1,320.51 : x
  2. Step 2: Convert to fraction form
    4,242.18/6,362.73 = 1,320.51/x
  3. Step 3: Cross multiply
    4,242.18x = 6,362.73 × 1,320.51
  4. Step 4: Simplify right side
    4,242.18x = 8,402,048.59
  5. Step 5: Solve for x
    x = 8,402,048.59/4,242.18
  6. Step 6: Final answer
    x = 1,980.60

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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.