Home / 7,030.21-9,702.55-4,006.45

Finding the Fourth Proportional to 7,030.21, 9,702.55 and 4,006.45

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Solution

The fourth proportional to 7,030.21, 9,702.55 and 4,006.45 is: 5,529.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,030.21 : 9,702.55 = 4,006.45 : x
  2. Step 2: Convert to fraction form
    7,030.21/9,702.55 = 4,006.45/x
  3. Step 3: Cross multiply
    7,030.21x = 9,702.55 × 4,006.45
  4. Step 4: Simplify right side
    7,030.21x = 38,872,744.01
  5. Step 5: Solve for x
    x = 38,872,744.01/7,030.21
  6. Step 6: Final answer
    x = 5,529.39

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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.