Home / 2,788,116.48-3,849,768-2,142,518.40

Finding the Fourth Proportional to 2,788,116.48, 3,849,768 and 2,142,518.40

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Solution

The fourth proportional to 2,788,116.48, 3,849,768 and 2,142,518.40 is: 2,958,340.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,788,116.48 : 3,849,768 = 2,142,518.40 : x
  2. Step 2: Convert to fraction form
    2,788,116.48/3,849,768 = 2,142,518.40/x
  3. Step 3: Cross multiply
    2,788,116.48x = 3,849,768 × 2,142,518.40
  4. Step 4: Simplify right side
    2,788,116.48x = 8,248,198,775,731.20
  5. Step 5: Solve for x
    x = 8,248,198,775,731.20/2,788,116.48
  6. Step 6: Final answer
    x = 2,958,340.81

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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.