Home / 3,617,218.74-4,991,742.16-1,985,653.87

Finding the Fourth Proportional to 3,617,218.74, 4,991,742.16 and 1,985,653.87

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Solution

The fourth proportional to 3,617,218.74, 4,991,742.16 and 1,985,653.87 is: 2,740,191.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,617,218.74 : 4,991,742.16 = 1,985,653.87 : x
  2. Step 2: Convert to fraction form
    3,617,218.74/4,991,742.16 = 1,985,653.87/x
  3. Step 3: Cross multiply
    3,617,218.74x = 4,991,742.16 × 1,985,653.87
  4. Step 4: Simplify right side
    3,617,218.74x = 9,911,872,120,602.67
  5. Step 5: Solve for x
    x = 9,911,872,120,602.67/3,617,218.74
  6. Step 6: Final answer
    x = 2,740,191.52

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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.