Home / 4,210.39-6,315.49-1,047.79

Finding the Fourth Proportional to 4,210.39, 6,315.49 and 1,047.79

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Solution

The fourth proportional to 4,210.39, 6,315.49 and 1,047.79 is: 1,571.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,210.39 : 6,315.49 = 1,047.79 : x
  2. Step 2: Convert to fraction form
    4,210.39/6,315.49 = 1,047.79/x
  3. Step 3: Cross multiply
    4,210.39x = 6,315.49 × 1,047.79
  4. Step 4: Simplify right side
    4,210.39x = 6,617,307.27
  5. Step 5: Solve for x
    x = 6,617,307.27/4,210.39
  6. Step 6: Final answer
    x = 1,571.66

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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.