Home / 4,285.51-6,430.08-1,820.86

Finding the Fourth Proportional to 4,285.51, 6,430.08 and 1,820.86

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Solution

The fourth proportional to 4,285.51, 6,430.08 and 1,820.86 is: 2,732.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,285.51 : 6,430.08 = 1,820.86 : x
  2. Step 2: Convert to fraction form
    4,285.51/6,430.08 = 1,820.86/x
  3. Step 3: Cross multiply
    4,285.51x = 6,430.08 × 1,820.86
  4. Step 4: Simplify right side
    4,285.51x = 11,708,275.47
  5. Step 5: Solve for x
    x = 11,708,275.47/4,285.51
  6. Step 6: Final answer
    x = 2,732.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.