Home / 4,075.80-6,113.70-1,478.40

Finding the Fourth Proportional to 4,075.80, 6,113.70 and 1,478.40

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Solution

The fourth proportional to 4,075.80, 6,113.70 and 1,478.40 is: 2,217.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,075.80 : 6,113.70 = 1,478.40 : x
  2. Step 2: Convert to fraction form
    4,075.80/6,113.70 = 1,478.40/x
  3. Step 3: Cross multiply
    4,075.80x = 6,113.70 × 1,478.40
  4. Step 4: Simplify right side
    4,075.80x = 9,038,494.08
  5. Step 5: Solve for x
    x = 9,038,494.08/4,075.80
  6. Step 6: Final answer
    x = 2,217.60

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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.