Home / 4,319-6,477.80-1,545.15

Finding the Fourth Proportional to 4,319, 6,477.80 and 1,545.15

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Solution

The fourth proportional to 4,319, 6,477.80 and 1,545.15 is: 2,317.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,319 : 6,477.80 = 1,545.15 : x
  2. Step 2: Convert to fraction form
    4,319/6,477.80 = 1,545.15/x
  3. Step 3: Cross multiply
    4,319x = 6,477.80 × 1,545.15
  4. Step 4: Simplify right side
    4,319x = 10,009,172.67
  5. Step 5: Solve for x
    x = 10,009,172.67/4,319
  6. Step 6: Final answer
    x = 2,317.47

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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.