Home / 3,870,681.63-5,341,331.48-2,151,680.19

Finding the Fourth Proportional to 3,870,681.63, 5,341,331.48 and 2,151,680.19

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Solution

The fourth proportional to 3,870,681.63, 5,341,331.48 and 2,151,680.19 is: 2,969,202.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,870,681.63 : 5,341,331.48 = 2,151,680.19 : x
  2. Step 2: Convert to fraction form
    3,870,681.63/5,341,331.48 = 2,151,680.19/x
  3. Step 3: Cross multiply
    3,870,681.63x = 5,341,331.48 × 2,151,680.19
  4. Step 4: Simplify right side
    3,870,681.63x = 11,492,837,122,980.98
  5. Step 5: Solve for x
    x = 11,492,837,122,980.98/3,870,681.63
  6. Step 6: Final answer
    x = 2,969,202.38

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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.