Home / 2,891,886.40-3,990,803.70-1,602,810.10

Finding the Fourth Proportional to 2,891,886.40, 3,990,803.70 and 1,602,810.10

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Solution

The fourth proportional to 2,891,886.40, 3,990,803.70 and 1,602,810.10 is: 2,211,878.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,891,886.40 : 3,990,803.70 = 1,602,810.10 : x
  2. Step 2: Convert to fraction form
    2,891,886.40/3,990,803.70 = 1,602,810.10/x
  3. Step 3: Cross multiply
    2,891,886.40x = 3,990,803.70 × 1,602,810.10
  4. Step 4: Simplify right side
    2,891,886.40x = 6,396,500,477,477.37
  5. Step 5: Solve for x
    x = 6,396,500,477,477.37/2,891,886.40
  6. Step 6: Final answer
    x = 2,211,878.20

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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.