Home / 4,285.48-6,421.10-4,123.40

Finding the Fourth Proportional to 4,285.48, 6,421.10 and 4,123.40

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Solution

The fourth proportional to 4,285.48, 6,421.10 and 4,123.40 is: 6,178.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,285.48 : 6,421.10 = 4,123.40 : x
  2. Step 2: Convert to fraction form
    4,285.48/6,421.10 = 4,123.40/x
  3. Step 3: Cross multiply
    4,285.48x = 6,421.10 × 4,123.40
  4. Step 4: Simplify right side
    4,285.48x = 26,476,763.74
  5. Step 5: Solve for x
    x = 26,476,763.74/4,285.48
  6. Step 6: Final answer
    x = 6,178.25

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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.