Home / 2,811,140.40-3,879,326.76-1,521,970.32

Finding the Fourth Proportional to 2,811,140.40, 3,879,326.76 and 1,521,970.32

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Solution

The fourth proportional to 2,811,140.40, 3,879,326.76 and 1,521,970.32 is: 2,100,293.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,811,140.40 : 3,879,326.76 = 1,521,970.32 : x
  2. Step 2: Convert to fraction form
    2,811,140.40/3,879,326.76 = 1,521,970.32/x
  3. Step 3: Cross multiply
    2,811,140.40x = 3,879,326.76 × 1,521,970.32
  4. Step 4: Simplify right side
    2,811,140.40x = 5,904,220,190,301.76
  5. Step 5: Solve for x
    x = 5,904,220,190,301.76/2,811,140.40
  6. Step 6: Final answer
    x = 2,100,293.60

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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.