Home / 4,285.13-6,430.12-1,976.63

Finding the Fourth Proportional to 4,285.13, 6,430.12 and 1,976.63

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Solution

The fourth proportional to 4,285.13, 6,430.12 and 1,976.63 is: 2,966.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,285.13 : 6,430.12 = 1,976.63 : x
  2. Step 2: Convert to fraction form
    4,285.13/6,430.12 = 1,976.63/x
  3. Step 3: Cross multiply
    4,285.13x = 6,430.12 × 1,976.63
  4. Step 4: Simplify right side
    4,285.13x = 12,709,931.00
  5. Step 5: Solve for x
    x = 12,709,931.00/4,285.13
  6. Step 6: Final answer
    x = 2,966.06

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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.