Home / 3,880,465.72-5,355,208.38-2,161,587.40

Finding the Fourth Proportional to 3,880,465.72, 5,355,208.38 and 2,161,587.40

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Solution

The fourth proportional to 3,880,465.72, 5,355,208.38 and 2,161,587.40 is: 2,983,082.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,880,465.72 : 5,355,208.38 = 2,161,587.40 : x
  2. Step 2: Convert to fraction form
    3,880,465.72/5,355,208.38 = 2,161,587.40/x
  3. Step 3: Cross multiply
    3,880,465.72x = 5,355,208.38 × 2,161,587.40
  4. Step 4: Simplify right side
    3,880,465.72x = 11,575,750,958,582.41
  5. Step 5: Solve for x
    x = 11,575,750,958,582.41/3,880,465.72
  6. Step 6: Final answer
    x = 2,983,082.91

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1.5x scale

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.