Finding the Fourth Proportional to 2,157,113.40, 3,235,670.10 and 2,129,119.80
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Solution
The fourth proportional to 2,157,113.40, 3,235,670.10 and 2,129,119.80 is: 3,193,679.70
Step by Step Solution
- Step 1: Write the proportion equation
2,157,113.40 : 3,235,670.10 = 2,129,119.80 : x - Step 2: Convert to fraction form
2,157,113.40/3,235,670.10 = 2,129,119.80/x - Step 3: Cross multiply
2,157,113.40x = 3,235,670.10 × 2,129,119.80 - Step 4: Simplify right side
2,157,113.40x = 6,889,129,276,177.98 - Step 5: Solve for x
x = 6,889,129,276,177.98/2,157,113.40 - Step 6: Final answer
x = 3,193,679.70
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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.