Home / 2,421.69-3,341.52-1,427.01

Finding the Fourth Proportional to 2,421.69, 3,341.52 and 1,427.01

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Solution

The fourth proportional to 2,421.69, 3,341.52 and 1,427.01 is: 1,969.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,421.69 : 3,341.52 = 1,427.01 : x
  2. Step 2: Convert to fraction form
    2,421.69/3,341.52 = 1,427.01/x
  3. Step 3: Cross multiply
    2,421.69x = 3,341.52 × 1,427.01
  4. Step 4: Simplify right side
    2,421.69x = 4,768,382.46
  5. Step 5: Solve for x
    x = 4,768,382.46/2,421.69
  6. Step 6: Final answer
    x = 1,969.03

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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.