Home / 3,603.10-5,400.93-1,381.40

Finding the Fourth Proportional to 3,603.10, 5,400.93 and 1,381.40

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Solution

The fourth proportional to 3,603.10, 5,400.93 and 1,381.40 is: 2,070.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,603.10 : 5,400.93 = 1,381.40 : x
  2. Step 2: Convert to fraction form
    3,603.10/5,400.93 = 1,381.40/x
  3. Step 3: Cross multiply
    3,603.10x = 5,400.93 × 1,381.40
  4. Step 4: Simplify right side
    3,603.10x = 7,460,844.70
  5. Step 5: Solve for x
    x = 7,460,844.70/3,603.10
  6. Step 6: Final answer
    x = 2,070.67

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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.