Home / 4,707.48-7,061.76-1,420.77

Finding the Fourth Proportional to 4,707.48, 7,061.76 and 1,420.77

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Solution

The fourth proportional to 4,707.48, 7,061.76 and 1,420.77 is: 2,131.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,707.48 : 7,061.76 = 1,420.77 : x
  2. Step 2: Convert to fraction form
    4,707.48/7,061.76 = 1,420.77/x
  3. Step 3: Cross multiply
    4,707.48x = 7,061.76 × 1,420.77
  4. Step 4: Simplify right side
    4,707.48x = 10,033,136.76
  5. Step 5: Solve for x
    x = 10,033,136.76/4,707.48
  6. Step 6: Final answer
    x = 2,131.32

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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.