Home / 7,520.31-10,378.40-4,537.13

Finding the Fourth Proportional to 7,520.31, 10,378.40 and 4,537.13

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Solution

The fourth proportional to 7,520.31, 10,378.40 and 4,537.13 is: 6,261.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,520.31 : 10,378.40 = 4,537.13 : x
  2. Step 2: Convert to fraction form
    7,520.31/10,378.40 = 4,537.13/x
  3. Step 3: Cross multiply
    7,520.31x = 10,378.40 × 4,537.13
  4. Step 4: Simplify right side
    7,520.31x = 47,088,075.41
  5. Step 5: Solve for x
    x = 47,088,075.41/7,520.31
  6. Step 6: Final answer
    x = 6,261.45

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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.