Home / 4,717.21-7,075.85-1,430.30

Finding the Fourth Proportional to 4,717.21, 7,075.85 and 1,430.30

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Solution

The fourth proportional to 4,717.21, 7,075.85 and 1,430.30 is: 2,145.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,717.21 : 7,075.85 = 1,430.30 : x
  2. Step 2: Convert to fraction form
    4,717.21/7,075.85 = 1,430.30/x
  3. Step 3: Cross multiply
    4,717.21x = 7,075.85 × 1,430.30
  4. Step 4: Simplify right side
    4,717.21x = 10,120,588.26
  5. Step 5: Solve for x
    x = 10,120,588.26/4,717.21
  6. Step 6: Final answer
    x = 2,145.46

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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.