Home / 2,479.51-3,421.74-1,485.64

Finding the Fourth Proportional to 2,479.51, 3,421.74 and 1,485.64

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Solution

The fourth proportional to 2,479.51, 3,421.74 and 1,485.64 is: 2,050.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,479.51 : 3,421.74 = 1,485.64 : x
  2. Step 2: Convert to fraction form
    2,479.51/3,421.74 = 1,485.64/x
  3. Step 3: Cross multiply
    2,479.51x = 3,421.74 × 1,485.64
  4. Step 4: Simplify right side
    2,479.51x = 5,083,483.66
  5. Step 5: Solve for x
    x = 5,083,483.66/2,479.51
  6. Step 6: Final answer
    x = 2,050.20

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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.